linux-kernel - Re: [PATCH v3] scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with

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Date:   Tue, 12 Oct 2021 16:35:23 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     bvanassche@....org, linux-scsi@...r.kernel.org,
        ming.lei@...hat.com, john.garry@...wei.com, haiyangz@...rosoft.com,
        Dexuan Cui <decui@...rosoft.com>, mikelley@...rosoft.com,
        linux-hyperv@...r.kernel.org, kys@...rosoft.com,
        longli@...rosoft.com, jejb@...ux.ibm.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v3] scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma()

On Thu, 7 Oct 2021 21:35:46 -0700, Dexuan Cui wrote:

> After commit ea2f0f77538c, a 416-CPU VM running on Hyper-V hangs during
> boot because the hv_storvsc driver sets scsi_driver.can_queue to an "int"
> value that exceeds SHRT_MAX, and hence scsi_add_host_with_dma() sets
> shost->cmd_per_lun to a negative "short" value.
> 
> Use min_t(int, ...) to fix the issue.
> 
> [...]

Applied to 5.15/scsi-fixes, thanks!

[1/1] scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma()
      https://git.kernel.org/mkp/scsi/c/50b6cb351636

-- 
Martin K. Petersen	Oracle Linux Engineering